Improvement in soap-molding machines



l. OAKLEY.

Suap-Malding Machines.

Patented Aug.11,1874.

UNITED STATES PATENT OFFICE.

JESSE OAKLEY, OF NEW YORK, N. Y.

IMPROVEMENT IN SOAP-MOLDING MACHiNES.

Specification forming part of Letters Patent No. 1 53,979, dated August 11, 1874; application led July 14, 1874.

To all lwhom it may concern:

Be it known that I, JESSE OAKLEY, of the city and State of New York, have invented an Improvement in Molds for Soap, of which the following is a specification:

These molds are especially intended for the soap known as transparent soap, which is run into molds in a fluid state, and allowed to cool; but said molds may be used for other kinds of soap.

ln manufacturingthe transparent soap great expense has heretofore been incurred in handling the separate molds; and, besides this, .the soap running into the mold from above is liable to froth and lessen the transparency of the soap in the upper parts of the balls.

My invention is made for the purpose of preventing both these difficulties and lessening the amount of labor in'handling the molds.

In the drawing, Figure 1 represents, by a vertical section, the said molds as in place for use. Fig. 2 is a horizontal section of the frames, and Fig. 3 shows the sheet-metal cups.

The frames a b are made of cast metal, with the contiguous faces dressed oft' true, and there are dowels c secured in one frame, and passing into holes in the other. These frames are made with openings to receive two or more sheet-metal molds, e e. It is preferable to 'press or spin these half-molds up out of sheet metal; and when the molds are halfglobes, the frames are to be dressed ofi' at the openings by a boring or turning tool, so as to be adapted to receive the sheet-metal molds that are secured into the frames by solder, and hence they iit each other with great accuracy. At one end of the metal frames is the rilling-` tube f, that is divided and adapted to sit into the supporting-plate g, so that said plate acts to keep the parts of the molds together while being filled with the soap in a liquid or semiliquid state, either by the hydrostatic pressure or by a pump, or otherwise. If the mold is filled from the top, the tube f serves to hold liquid soap to run into the balls, and keep them solid as they chill and contract; but I prefer and use a valve, h, :set within a ring, t', that is soldered to one halfpipe f, so that the molds may be employed in the position shown in Fig. 1, and the liquid or semi-liquid soap Will pass upwardly from supply-pipes land fill the molds without frothing or bubbling; thereby the molds will be entirely filled with the transparent soap, and after the supply ot' soap has been shut oli" thcmolds are to be removed, the valves It closing and retaining the contents of each range of molds. It is preferable to reverse the molds, so that they will remain entirely full during the contraction consequent on cooling, as the valve h will open and allow the soap in the tube to run into the mold as the contraction takes place.

After the globes or cakes of soap are cooled the molds are to be opened, and the projections cut or broken omand the molds cleaned, if required, and set together into the plate, to be iilled as aforesaid.

I claim as my invention- 1. The sheet-metal mold e, soldered into the metallic frames a b, and provided with the dowels c and lling-tube f, substantially as and for the purposes set forth.

2. -A soap-mold made with a filling-tube at the bottom, through which the soap rises, substantially as and for the purposes set forth.

3. The iilling-tube and valve applied to and combined with the sheet-metal soap-mold secured in a frame, as specified.

Signed by me this 8th day of July, A. D. 1874.

JESSE OAKLEY.

Witnesses GEO. T. PINOKNEY,

CEAS. H. SMITH. 

